Clamp for flexible containers



W. E. GODDARD. CLAMP FOR FLEXIBLE CONTAINERS.

APPLlCATlON FILED 050.27, 1920. J

Patented Aug. 16,

WilliamEEuddard WILLIAM EDWARD GODDARD, or warnnrown, WISCONSIN.

CLAMP FOR FLEXIBLE CONTAINERS.

Application filed December 27, 1920. Serial T 0 all 207mm 2'23 may concern.

Be it known that I, lVILL-IAM EDWARD GODDARD, a citizen of the United States, and resident of VVatertown, in the county of Jefferson and State of Wisconsin, have invented certain new and useful Improvements in Clamps for Flexible Containersg: and I do hereby declare that the following is a full, clear, and exact description thereof.

My invention refers to closure clampsfor the opened filling ends of flange containers, such for example as water bottles, fountain syringes, milk bottles or the like.

The primary object of my invention is to provide a simple, economical and effective detachable flat clamp for such containers, wherein all projections are eliminated to thus guard against injury by contact with the clamp, either to the person or clothing of the users.

Specific objects of my invention are:

To provide a three-piece flat clamp having swinging'end clips of closely wedge type, whereby the lips of a resilient clamping body are caused touniformly bite the adjacent receptacle, about its filling opening, to thus effectually seal such receptacle.

To provide the lips of the clamping body with normally opposed concave convex surfaces, whereby the closure pressure exerted upon the ends of the clamping body is uniformly distributed along the sealing surface of the receptacle.

To provide as a manufacturing process a friction clamp,.the jaw blank of which is composed of resilient material, which, in its initial dieing operation, is formed with concavo convex edges permanently to folding, and in whichthe end closures are formed from metal blanks folded upon themselves to develop a wedge shapedmouth, the base folds of the three units being rounded to prevent unobstructed surfaces when the clamp is in use.

lVith the above and other minor objects in View, the invention consists in certain peculiarities of construction and combination of parts, 7 reference to the accompanying drawings and subsequently claimed.

In the drawings: V V

Figure :1 represents a fragmentary elevation of 'a-portionof the flexible container having aihxed to itsembodying the features parts of which are broken Specification of Letters Patent.

as are hereinafter set forth with filling mouth a clamp of my invention, away and 1n sec;

Patented is. ie, 1921. No. 433,460.

tion to more clearly illustrate the details of construction.

Fig. 2 is a plan view of the clamp showing clip members in open position.

Fig. 3 is a similar view showing clip members in closed position.

Fig. 4L- is a cross-section of the clamp, the section being indicated by line H of Fig. 2.

Fig. 5 is another cross section of the clamp, the section being indicated'by line 5-5 of Fig. 3'in which the clip member is shown closed with relation to the clamp body, and Fig. 6 is a diagrammatic plan View of a metallic blank from which the clamp body is formed.

Referring bycharacters to the drawings, as best shown in Fig. 6, the clamp body is formed from a single rectangular body 03, having its edges as indicated, bowed inwardly upon an arc of the circle, as at the bowed or concavo convex edges being gradually merged into a straight portion adjacent to the-corners of the blank. Hence, when-the blank is folded upon itself it forms gripping lips ll, which are concavo convexed in form with their opposed edges increasing toward the ends of the clamp body, as best shown in Fig. 2. The base of the body is folded to present a rounded outer surface as shown at 2. Metallic end clips 33 are secured to the lower folded corners of the body by means of pivot pins 3.

As clearly shown in the drawings, the clip members are formed from single rectangular blanks folded upon themselves to develop gripping jaws lf, which are tapered inwardly from their hinged points. Thus the gripping jaws develop wedge shapes for engagement with the end edges 5 of the clampng body, it being understood that when the clips are folded against the faces 5, the tapered jaws 4 thereof cause the entire clamping body to gradually contract, whereby the lip edges of the same will be compressed to uniformly bite the surface of the container A. about its filling end.

I claim:

1. A detachable friction clamp for closing the open end of a flexible container comprising a resilient metallic body, folded upon itself to form gripping lips, an end closure for the body, comprising open mouth clips in pivotal union with the base corners of the clamping body, the edges of the clips being contracted from their pivot points so as to progressively compress the clamping lips when said clips are folded against the end body.

ed es of the aforesaid clamping for clos- 23 2. A detachable friction clamp 5 ing the open end of a flexible container, comprising a resilient metallic body folded upon itself to form companion gripping lips, the edges of which are normally concave eonvexed, and end closures for the body compris- 10 ing open mouth clips in pivotal union with the lower corners of the clamping body, the mouth edges of said clips being gradually tapered inwardly from their pivot points for progressive engagement with the end edges of the aforesaid clamping body.

In testimony that I claim the foregoing I have hereunto set my hand at VVatertown, in the county of Jefferson and State of Viseonsln.

WVILLIAM EDWVARD GODDARD. 

